MAX6457UKD0C+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, high-accuracy voltage monitoring
• Package: SOT23-5
• Essence: Provides reliable power supply monitoring and reset generation
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: 2.5V, 3.0V, 3.3V, 5.0V
• Reset Timeout Period: Adjustable or Fixed (140ms, 280ms, 560ms, 1120ms)
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1.5µA (typical)

Detailed Pin Configuration

The MAX6457UKD0C+T IC has a SOT23-5 package with the following pin configuration:

```

---

| | --|----|-- |____| ```

Pin 1: GND (Ground) Pin 2: RESET (Reset Output) Pin 3: MR (Manual Reset Input) Pin 4: VCC (Supply Voltage) Pin 5: TH (Threshold Voltage Selection)

Functional Features

• Monitors the supply voltage and generates a reset signal when it falls below a specified threshold.
• Provides manual reset capability through the MR pin.
• Offers adjustable or fixed reset timeout periods for flexibility in different applications.
• Low quiescent current consumption ensures minimal power usage.

Advantages and Disadvantages

Advantages: - High accuracy in voltage monitoring. - Wide supply voltage range allows compatibility with various systems. - Small package size enables space-saving designs. - Low quiescent current minimizes power consumption.

Disadvantages: - Limited threshold voltage options may not suit all applications. - Fixed reset timeout periods may not be suitable for all scenarios.

Working Principles

The MAX6457UKD0C+T operates by continuously monitoring the supply voltage. When the voltage falls below the programmed threshold, the IC generates a reset signal on the RESET pin. This signal can be used to initiate system resets or perform other necessary actions. The MR pin allows for manual reset capability, enabling users to manually trigger a reset when required. The adjustable or fixed reset timeout periods determine how long the reset signal remains active after the supply voltage returns to an acceptable level.

Detailed Application Field Plans

The MAX6457UKD0C+T finds application in various fields where reliable power supply monitoring and reset generation are crucial. Some potential application areas include:

1. Microcontrollers and Embedded Systems: Ensures proper system initialization and prevents erratic behavior during power-up or voltage fluctuations.
2. Industrial Control Systems: Provides stable operation and protection against power supply abnormalities in industrial automation equipment.
3. Battery-Powered Devices: Monitors battery voltage to prevent over-discharge and damage to sensitive electronics.
4. Automotive Electronics: Ensures reliable operation of automotive systems by monitoring the vehicle's power supply voltage.
5. Medical Equipment: Protects critical medical devices from voltage fluctuations and ensures safe operation.

Detailed and Complete Alternative Models

1. MAX6381XR26D3+: Similar voltage supervisor IC with fixed 2.6V threshold and adjustable reset timeout period.
2. MAX809REUR+: Voltage supervisor IC with fixed 3.08V threshold and fixed reset timeout period.
3. MAX6717AUKSDD3+: Voltage supervisor IC with adjustable threshold voltage and fixed reset timeout period.
4. MAX6369LKA23+: Voltage supervisor IC with fixed 2.3V threshold and adjustable reset timeout period.

These alternative models offer similar functionality and can be considered based on specific application requirements.

Word count: 527 words